Department of Nutrition Sciences, University of Alabama at Birmingham, Birmingham, Alabama, USA.
Obesity (Silver Spring). 2011 Jun;19(6):1177-81. doi: 10.1038/oby.2010.298. Epub 2010 Dec 16.
This study examined the relationship between previous dietary adherence during a low-calorie diet weight loss intervention and subsequent weight change during a 2-year follow-up for weight maintenance. One hundred and sixteen healthy, recently weight reduced (lost ~12 kg, BMI 22-25 kg/m2) premenopausal women were studied. Dietary adherence was assessed by doubly labeled water (DLW) and body composition change. Comparisons were made between the upper and lower tertiles for previous dietary adherence and subsequent weight change at 1- and 2-year follow-up. Percent weight regained was significantly lower (30.9 ± 6.7% vs. 66.7 ± 9.4%; P < 0.05) in the upper compared to the lower adherence tertile for previous weight loss dietary adherence (49.9 ± 8.8% vs. 96.8 ± 12.8% P < 0.05) at 1- and 2-year follow-up, respectively. This difference was partly explained by increases in daily activity-related energy expenditure (AEE) (+95 ± 45 kcal/day vs. -44 ± 42 kcal/day, P < 0.05) and lower daily energy intake (2,066 ± 71 kcal/day vs. 2,289 ± 62 kcal/day, P < 0.05) in the higher tertile for previous dietary adherence, compared to the lower. These findings suggest that higher adherence (i.e., higher tertile) to the previous low-calorie diet predicts lower weight regain over 2-year follow-up for weight maintenance, which is explained by lower energy intake and higher physical activity. Finally, how well an individual adheres to a low-calorie diet intervention during weight loss may be a useful tool for identifying individuals who are particularly vulnerable to subsequent weight regain.
这项研究调查了低热量饮食减肥干预期间之前的饮食依从性与接下来 2 年体重维持随访期间体重变化之间的关系。研究了 116 名健康、近期体重减轻（体重减轻约 12 公斤，BMI 22-25kg/m2）的绝经前妇女。通过双标水（DLW）和身体成分变化评估饮食依从性。比较了之前饮食依从性的上三分位数和下三分位数与 1 年和 2 年随访时的后续体重变化。与下三分位数相比，上三分位数的之前减肥饮食依从性（49.9 ± 8.8% 比 96.8 ± 12.8%，P < 0.05）显著降低（30.9 ± 6.7% 比 66.7 ± 9.4%，P < 0.05）在 1 年和 2 年随访时分别为体重恢复百分比。这种差异部分解释为日常活动相关能量消耗（AEE）增加（+95 ± 45 kcal/天比 -44 ± 42 kcal/天，P < 0.05）和较高依从性三分位的每日能量摄入减少（2066 ± 71 kcal/天比 2289 ± 62 kcal/天，P < 0.05），与低三分位相比。这些发现表明，较高的（即较高的三分位数）对之前低热量饮食的依从性可预测 2 年体重维持随访期间体重的较低恢复，这归因于较低的能量摄入和较高的身体活动。最后，个体在减肥期间对低热量饮食干预的依从性可能是识别特别容易出现体重恢复的个体的有用工具。
